4decfaa82e
This change implements the first pass at image manifest storage on top of the storagedriver. Very similar to LayerService, its much simpler due to less complexity of pushing and pulling images. Various components are still missing, such as detailed error reporting on missing layers during verification, but the base functionality is present.
139 lines
3.1 KiB
Go
139 lines
3.1 KiB
Go
package storage
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import (
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"reflect"
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"testing"
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"github.com/docker/libtrust"
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"github.com/docker/docker-registry/digest"
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"github.com/docker/docker-registry/storagedriver/inmemory"
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)
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func TestManifestStorage(t *testing.T) {
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driver := inmemory.New()
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ms := &manifestStore{
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driver: driver,
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pathMapper: &pathMapper{
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root: "/storage/testing",
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version: storagePathVersion,
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},
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layerService: newMockedLayerService(),
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}
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name := "foo/bar"
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tag := "thetag"
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exists, err := ms.Exists(name, tag)
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if err != nil {
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t.Fatalf("unexpected error checking manifest existence: %v", err)
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}
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if exists {
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t.Fatalf("manifest should not exist")
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}
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if _, err := ms.Get(name, tag); err != ErrManifestUnknown {
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t.Fatalf("expected manifest unknown error: %v != %v", err, ErrManifestUnknown)
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}
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manifest := Manifest{
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Versioned: Versioned{
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SchemaVersion: 1,
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},
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Name: name,
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Tag: tag,
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FSLayers: []FSLayer{
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{
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BlobSum: "asdf",
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},
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{
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BlobSum: "qwer",
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},
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},
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}
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pk, err := libtrust.GenerateECP256PrivateKey()
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if err != nil {
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t.Fatalf("unexpected error generating private key: %v", err)
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}
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sm, err := manifest.Sign(pk)
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if err != nil {
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t.Fatalf("error signing manifest: %v", err)
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}
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err = ms.Put(name, tag, sm)
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if err == nil {
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t.Fatalf("expected errors putting manifest")
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}
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// TODO(stevvooe): We expect errors describing all of the missing layers.
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ms.layerService.(*mockedExistenceLayerService).add(name, "asdf")
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ms.layerService.(*mockedExistenceLayerService).add(name, "qwer")
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if err = ms.Put(name, tag, sm); err != nil {
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t.Fatalf("unexpected error putting manifest: %v", err)
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}
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exists, err = ms.Exists(name, tag)
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if err != nil {
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t.Fatalf("unexpected error checking manifest existence: %v", err)
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}
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if !exists {
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t.Fatalf("manifest should exist")
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}
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fetchedManifest, err := ms.Get(name, tag)
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if err != nil {
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t.Fatalf("unexpected error fetching manifest: %v", err)
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}
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if !reflect.DeepEqual(fetchedManifest, sm) {
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t.Fatalf("fetched manifest not equal: %#v != %#v", fetchedManifest, sm)
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}
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}
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type layerKey struct {
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name string
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digest digest.Digest
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}
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type mockedExistenceLayerService struct {
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exists map[layerKey]struct{}
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}
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func newMockedLayerService() *mockedExistenceLayerService {
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return &mockedExistenceLayerService{
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exists: make(map[layerKey]struct{}),
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}
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}
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var _ LayerService = &mockedExistenceLayerService{}
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func (mels *mockedExistenceLayerService) add(name string, digest digest.Digest) {
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mels.exists[layerKey{name: name, digest: digest}] = struct{}{}
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}
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func (mels *mockedExistenceLayerService) remove(name string, digest digest.Digest) {
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delete(mels.exists, layerKey{name: name, digest: digest})
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}
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func (mels *mockedExistenceLayerService) Exists(name string, digest digest.Digest) (bool, error) {
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_, ok := mels.exists[layerKey{name: name, digest: digest}]
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return ok, nil
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}
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func (mockedExistenceLayerService) Fetch(name string, digest digest.Digest) (Layer, error) {
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panic("not implemented")
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}
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func (mockedExistenceLayerService) Upload(name string) (LayerUpload, error) {
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panic("not implemented")
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}
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func (mockedExistenceLayerService) Resume(uuid string) (LayerUpload, error) {
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panic("not implemented")
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}
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